ALSA: hda: cs35l41: Support System Suspend

Add support for system suspend into the CS35L41 HDA Driver.
Since S4 suspend may power off the system, it is required
that the driver ensure the part is safe to be shutdown before
system suspend, as well as ensuring that the firmware is
unloaded before shutdown. The part must then be restored
on system resume, including re-downloading the firmware.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221011143552.621792-6-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>